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Using Termite Baits

- Baits fool worker termites into poisoning the colony -

Summary: Termite baits are a low toxicity alternative to soil-applied termiticides. Baits can also be used in conjunction with conventional treatments.

Jack DeAngelis, PhD
OSU Ext. Entomologist (ret.)

What are termite baits?

Baits are now available to monitor and eliminate subterranean termite (not drywood termite) colonies. The advantage of baits over soil treatments is that baiting uses far less insecticide and is less environmentally disruptive than conventional treatments.

Termite baiting works by fooling worker termites into taking poisoned bait back to the colony. Foraging worker termites find the bait and recruit fellow nestmates to the new "food source". The colony, and queen, are slowly poisoned when the toxin is taken back to the nest.

house foundation drawing

Subterranean termite entry points. Original drawing from Wood-Inhabiting Insects in Houses by Harry B. Moore, 1979. USDA, Forest Service and HUD. Click the image for an enlarged view of termite entry points.

Baits consist of some type of cellulose (the part of wood that termites need) that may be laced with insecticide or insect growth regulator. The different baiting systems (see below) differ in how they present the bait to foraging termites and which insecticide or growth regulator is used.

 

 

Is termite baiting a DIY project?

Baiting for termite control can be complicated and time-consuming. Most homeowners will conclude that the time and effort involved is more than they want to commit. In this case an experienced pest control company should be hired to set-up your baiting program. On the other hand, DIY baiting can be very economical compared to professional, post-construction treatments.

There are a number of termite baiting systems that all work pretty much the same. First, stations are placed either above ground or buried below ground. These initial stations usually do not contain poison. Their only purpose is to establish a feeding pattern. Once termite feeding is established the poison is placed in the stations. Poisoned cellulose bait is then carried back to the colonies by the worker termites.

Popular termite bait systems (manufacturer)

Advance (Whitmire Micro Gen) - available as DIY; uses diflubenzuron insect growth regulator

Firstline (FMC) - available as DIY; uses sulfluramid a slow-acting insecticide

Sentricon (Dow) - generally not available as DIY

Subterfuge (BASF) - generally not available as DIY

Do I need to bait for termites?

Baiting is best used in areas where subterranean termites are the dominant structural insect pest such as regions with a tropical or semi-tropical climate. For example, baiting should be a part of your regular termite management if you live in coastal Florida, Georgia, Alabama, Mississippi, North & South Carolina, Louisiana, Texas, Hawaii, and northern Australia. Baiting may not be of much benefit if you live in an area where subterranean termites are not the dominant structural pest.

Baiting can be a do it yourself (DIY) project as kits and individual components are now available for some bait systems. However, it takes time and effort to establish the baiting stations and monitor them effectively. Instructions for establishing and monitoring the stations differ somewhat between products but are explained in detail on the package labels. It is important that you follow these instructions carefully. I prefer purchasing the components separately rather than as a pre-assembled "kit".

Identification guides, reference and gardening books, etc.

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Jack DeAngelis, Ph.D.

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